section {
    width: 500px;
    height: auto;
    padding: 10px 0;
    box-sizing: border-box;
    background-color: #ccc;
    border-radius: 10px;
    margin: 20px auto;
}

section .title {
    width: 100%;
    display: block;
    background: #333;
    color: lightgreen;
}

ul {
    list-style: none;
}
